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Bluetooth: controller: Ignore connections from same peer

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Ignore connection indications from peers that are already
connected. This is to bring the behavior of the controller in
accordance with [5.2, Vol 6, Part B, 4.5 Connection state]:
"If an advertiser receives a connection request from an initiator it
is already connected to, it shall ignore that request."

Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
This commit is contained in:
Wolfgang Puffitsch 2021-02-23 15:41:44 +01:00 • committed by Anas Nashif
commit 010c5c2f20
9 changed files with 160 additions and 26 deletions
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12
subsys/bluetooth/controller/Kconfig.ll_sw_split
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@ -475,6 +475,18 @@ config BT_CTLR_CONN_RSSI_EVENT
help
Generate events for connection RSSI measurement.
config BT_CTLR_ALLOW_SAME_PEER_CONN
bool "Allow connection requests from same peer"
depends on BT_MAX_CONN > 1
help
Allow connection requests from the same peer. While the
Bluetooth specification does not allow multiple connections
with the same peer, allowing such connections is useful
while debugging multiple connections.
WARNING: This option enables behavior that violates the Bluetooth
specification.
endif # BT_CONN
config BT_CTLR_ADV_INDICATION